Light comprising three wavelength 310, 455, 620 nm is incident on… - Vidyadip

MCQ

Light comprising three wavelength $310$, $455$, $620$ $nm$ is incident on a surface separating two media at an angle of $45^o $ and given refractive index for $455$ $nm$ light is $\sqrt 2 $ . If a metal plate of work function $1.2$ $eV$ is placed in this medium then maximum kinetic energy of the electron emitted from metallic plate is.......$eV$

✓
$0.8$
B
$2.8$
C
$1.8$
D
$1.5$

✓

Answer

Correct option: A.

$0.8$

a

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